幕布斯5086720

测试可行。这只是核心Class文件代码，你要是弄不出来，就再联系我，我再把整个项目给你。这是把图片真个放到数据库package com.dao;import java.io.FileInputStream;import java.io.OutputStream;import java.sql.Blob;import java.sql.Connection;import java.sql.PreparedStatement;import java.sql.ResultSet;import java.util.Scanner;import oracle.sql.BLOB;public class Insert {Scanner sc =new Scanner(System.in);@SuppressWarnings("deprecation")public int insertbinary(String pname,String src1){Connection con = null;String sql = "insert into test values(?,?)";String sql1 ="update test set image=? where pname=?";int res = 0;try {con=BaseDAO.getConnection();con.setAutoCommit(false);PreparedStatement pstm = con.prepareStatement(sql);pstm.setString(1, pname);//EMPTY_BLOB和EMPTY_CLOB返回一个空的LOB定位器，//可以用来初始化一个LOB变量，或在INSERT或UPDATE语句，//初始化LOB列或属性为空。 EMPTY表示LOB初始化，但不填充数据。pstm.setBlob(2, oracle.sql.BLOB.empty_lob());pstm.executeUpdate();pstm.close();pstm = con.prepareStatement("select * from test where pname=?");pstm.setString(1, pname);ResultSet rs = pstm.executeQuery();rs.next();BLOB blob = (BLOB) rs.getBlob(2);OutputStream os = blob.getBinaryOutputStream();FileInputStream fi = new FileInputStream(src1);byte[] buff = new byte[1024];int len = fi.read(buff);while (len != -1) {os.write(buff);len = fi.read(buff);}pstm = con.prepareStatement(sql1);pstm.setBlob(1, blob);pstm.setString(2, pname);res = pstm.executeUpdate();con.commit();pstm.close();con.close();if (res > 0) {System.out.println("success");}} catch (Exception ex) {ex.printStackTrace();}return res;}}